Magento 2 Interception Demo code

app\code\Apple\IDontCare\etc\di.xml

<config>
    <type name="Magento_Backend_Model_Menu_Item">
        <plugin name="ILovePlugins" type="Apple_IDontCare_Model_Menu_Item_Plugin" sortOrder="100" />
    </type>
</config>

app\code\Apple\IDontCare\etc\module.xml

<config>
    <module name="Apple_IDontCare" version="1.0.0.0" active="true"/>
</config>

C:\wamp\www\magento2\app\code\Apple\IDontCare\Model\Menu\Item\Plugin.php

<?php

class Apple_IDontCare_Model_Menu_Item_Plugin
{
    public function afterGetTitle($result)
    {
        return '^' . $result . '^';
    }
}

C:\wamp\www\magento2\app\code\Google\Nostromo\etc\di.xml

<config>
    <type name="Magento_Backend_Model_Menu_Item">
        <plugin name="kernel" type="Google_Nostromo_Model_Menu_Item_Plugin" sortOrder="200" />
    </type>
</config>

C:\wamp\www\magento2\app\code\Google\Nostromo\etc\module.xml

<config>
    <module name="Google_Nostromo" version="1.0.0.0" active="true" />
</config>

C:\wamp\www\magento2\app\code\Google\Nostromo\Model\Menu\Item\Plugin.php

<?php

class Google_Nostromo_Model_Menu_Item_Plugin
{
    public function afterGetTitle($result)
    {
        return '(' . $result . ')';
    }
}